AA4UC — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EL98

Receiver-side FT8 activity involving AA4UC, decoded by SO8OO in southeastern Poland. 286 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-06.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 286 FT8 messages attributed to AA4UC as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (76%), followed by 80 m (15%) and 40 m (10%). Most decodes (84%) fell within the six-hour window 01:00-07:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

286
Messages attributed
23
UTC dates decoded
48
Active 15-min windows
-8 dB
Estimated median S/N

Bands

80m · 42 40m · 28 20m · 216
First attributed message: 2026-06-08
Last attributed message: 2026-11-06 05:25 UTC

Observed FT8 message patterns

Attributed sample
286 messages
Active dates
23 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-20 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 77, moderate (-15 to -9 dB) 64, strong (≥ -8 dB) 145.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with AA4UC in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to AA4UC

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
EL98 · 165 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,464 km (approx.)
Last such locator decoded
2026-11-06 05:21 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandAA4UC S/NCounterpartCounterpart S/NMsgsCapture
11-06 05:25 80m 0 / -10 OH1MLZ +21 / -3 4 ✓ Full exchange observed
11-06 05:25 80m - / - G6PWS -1 / - 3 Partial capture
11-06 05:21 80m - / -21 PE2JMR -6 / - 4 ✓ Closing fragment
11-06 04:49 80m - / -7 SP5AA +8 / - 3 ✓ Closing fragment
11-06 04:45 80m - / - SM5DIC -8 / - 2 Partial capture
10-21 04:04 80m -18 / -10 PA3FPQ +10 / -7 5 ✓ Full exchange observed
10-21 04:02 80m -17 / -10 IK1AIL -5 / -12 6 ✓ Full exchange observed
10-21 04:02 80m -15 / -1 F4EGM 0 / - 4 ✓ Closing observed
10-21 04:00 80m -23 / -13 SP7ENW +5 / -15 6 ✓ Full exchange observed
10-21 03:58 80m -18 / - VK2AWN - / - 3 Partial capture
10-15 03:52 40m -23 / - C5R - / +5 4 Partial capture
10-01 04:38 80m - / - DK1MCS +4 / - 2 Partial capture
10-01 04:38 80m -10 / -15 HB9FMN +8 / - 4 ✓ Closing observed
10-01 04:37 80m - / -12 OK1FCR +23 / - 3 ✓ Closing fragment
10-01 04:35 80m - / - PE1NMM -12 / - 2 Partial capture
10-01 04:33 80m -13 / -3 DO5OT +21 / -11 6 ✓ Full exchange observed
10-01 04:30 80m -15 / -11 C31KC -20 / -12 7 ✓ Full exchange observed
10-01 04:30 80m -15 / -14 S59V +15 / - 5 ✓ Closing observed
10-01 04:30 80m -17 / -9 SP5MXZ -7 / -19 9 Partial capture
09-25 04:38 80m -17 / - DL3OCF -24 / - 2 ✓ Closing observed
09-25 04:37 80m -13 / - K4JJL - / -9 2 ✓ Closing fragment
09-25 04:34 80m -11 / +9 F5MXH -10 / -13 8 ✓ Full exchange observed
09-25 04:34 80m -11 / +4 ON7GB 0 / -6 5 ✓ Full exchange observed
09-25 04:33 80m -10 / -2 RN2F +14 / -16 4 ✓ Full exchange observed
09-25 04:32 80m - / - YO8OE -1 / - 5 Partial capture
09-25 01:47 40m - / - RD7O -5 / - 4 Partial capture
09-25 01:45 40m - / - CT7AUT -8 / - 2 ✓ Closing fragment
09-23 01:31 80m -20 / - ZP6TT - / - 2 Partial capture
09-09 03:09 80m - / - US2YW -1 / - 2 ✓ Closing fragment
09-09 03:08 80m - / - G8OO -9 / - 9 Partial capture
09-09 01:31 80m - / -11 R9JX -8 / - 2 Partial capture
09-04 03:18 40m -15 / -18 SP5LST -14 / - 4 ✓ Closing observed
09-04 03:16 40m -9 / -16 UT4EK -9 / -17 6 ✓ Full exchange observed
09-04 03:13 40m - / -11 IZ8EYN +5 / - 3 ✓ Closing fragment
09-04 03:13 40m -15 / -10 R6TA -8 / -9 4 Partial capture
09-04 03:07 40m -14 / - <...> - / - 4 Partial capture
09-03 23:55 40m -14 / - Z31B - / - 2 ✓ Closing fragment
09-03 23:53 40m -12 / - <...> - / - 2 Partial capture
09-02 03:13 80m -23 / - J38DX - / - 4 Partial capture
09-01 01:50 40m -17 / - <...> - / - 6 Partial capture
08-29 17:14 20m - / - PD1ADA -12 / - 2 Partial capture
08-28 02:22 80m -24 / -14 IK5CHL 0 / - 4 ✓ Closing observed
08-28 02:21 80m -22 / - 9K2OD - / - 3 Partial capture
08-27 12:49 20m - / - RW0SM -8 / - 2 ✓ Closing fragment
08-22 05:33 20m - / - ON3MV -5 / - 4 Partial capture
08-22 05:02 20m -18 / -19 R6FFB +6 / +7 7 ✓ Full exchange observed
08-22 05:01 20m -16 / -13 IT9PHU +8 / -13 2 Partial capture
08-22 04:59 20m -16 / - TK5AE - / - 4 Partial capture
08-22 03:30 20m - / - PE1NPS 0 / - 3 Partial capture
08-22 03:29 20m - / - RA6ZS -14 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

80m 
UTC    dB Audio  Message
045015 +11 1851  AA4UC SP5AA R-07 (x2)
045045  -2 1907  AA4UC SP1EG JO73
052115 -15 1908  RA2FGK AA4UC EL98
052130 -10  255  AA4UC PE2JMR JO33 (x4)
052500  +4 1155  AA4UC G6PWS IO91
052530 +20 2606  AA4UC OH1MLZ KP23
052545  +0 2908  OH1MLZ AA4UC -03
052600 +28 2606  AA4UC OH1MLZ R-10
052600  +4 1155  AA4UC G6PWS IO91
052630 +16 2606  AA4UC OH1MLZ 73
052630 -10 1155  AA4UC G6PWS IO91
40m 
UTC    dB Audio  Message
031915 -15 1806  SP5LST AA4UC RR73
031930 -14 2180  AA4UC SP5LST 73
014500  -9 1543  AA4UC CT7AUT IM67 (x2)
014700  -8 1974  AA4UC RD7O KN98 (x4)
015415 -21 1677  3B8FA AA4UC R-24 (x2)
042215 -21 1772  IW0HAC AA4UC RR73
035245 -24 1821  C5R AA4UC EL98 (x4)
20m 
UTC    dB Audio  Message
050245 -18 1763  R6FFB AA4UC +07
050300 +11 2532  AA4UC R6FFB LN14
050315 -17 1763  R6FFB AA4UC -14
050330  +0 2532  AA4UC R6FFB R-19 (x2)
053130 -16 1945  Z21ML AA4UC 73
053300 -17 1944  F5JYS AA4UC RR73
053345  -2 1985  AA4UC ON3MV JO21 (x4)
124900  -7 2809  AA4UC RW0SM OO22 (x2)
171430 -10 1357  AA4UC PD1ADA JO21 (x2)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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